Design Exercise 3.pdf - Design Exercise-3 Student ID...

This preview shows page 1 - 4 out of 7 pages.

Design Exercise-3 0401447-Water Resources Engg Student ID_______________ Spring 2020-2021 1 Time-discharge data of a storm hydrograph for a river draining a catchment area of 400km 2 due to a 6- hour isolated storm are given in table below. Using given data; 1. Plot hydrograph and identify its essential component 2. Separate base flow and direct runoff 3. Drive the ordinates of 6-hour-unit-hydrograph Time from start (Hours) Discharge (m 3 /s) -6 20.9 0 19 6 40 12 91.5 18 125.5 24 112.5 30 95 36 81 42 69 48 57 54 49 60 41.5 66 36 72 31.5 78 27.5 84 25.9 90 22.5 96 22 102 22
Design Exercise-3 0401447-Water Resources Engg Student ID_______________ Spring 2020-2021 2 1. Plot Hydrograph and identify its essential components Figure 1: 6-hour storm hydrograph 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 -12 -6 0 6 12 18 24 30 36 42 48 54 60 66 72 78 84 90 96 102 108 114 120 Discharge (cumecs) Time (hours)
Design Exercise-3 0401447-Water Resources Engg Student ID_______________ Spring 2020-2021 3 2. Separate base flow and direct runoff The following three methods can be used (i). Straight line method (ii). Inclined line method (iii) Fixed base length method

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture